BEIRUT (Reuters) - A spokesman for a major Syrian rebel group said on Thursday it had reservations about an agreement for a nationwide ceasefire and resumption of negotiations and was not among the groups that had signed it.

People stand near near rubble of damaged buildings in al-Rai town, northern Aleppo countryside, Syria December 25, 2016. REUTERS/Khalil Ashawi

“Ahrar al-Sham has a number of reservations over the proposed agreement and the negotiations linked to it, and therefore has not signed it. We will make clear our reservations in due course,” Ahmad Qura Ali, a spokesman for the powerful Islamist group, wrote on his Twitter account.